©201
7
Nelson Heat Tracing Systems
www.nelsonheaters.com
GA2497 Rev.
5
5
CM-2201/CM-2202
Application Information
2.0 General Application Information
The CM-2201/CM-2202 are designed to operate on input
voltages between
100
and
277
Vac
and
50/60Hz. Load
switching is handled by a 2-Pole solid-state relay and can
control resistive loads of 30A continuous @ 40°C ambient.
The CM-2201/CM-2202 are designed to control heating
circuits by monitoring
one o
r two
temperature
inputs for
each circuit via industry standard 3-wire, 100Ω, Platinum
RTDs. The two separate RTDs for each circuit maybe
utilized to customize the temperature
control inputs.
Several different modes are user selectable as well as the
sensor failure operational mode.
The
CM-2201 and CM-2202 can be operated in
temperatures
of -40°F to +104°F (-40°C to +40°C).
